Calculators that respond to their environment. All of the financial calculators here at CalcXML have been designed following responsive web design principles, adapting to the size of the screen on which they are displayed. From the smallest cell phone to the largest desktop monitor, all of your web visitors will be happy with these financial calculators.
Dichlorodiphenyltrichloroethane (DDT) Dichlorodiphenyltrichloroethane (DDT) is an insecticide used in agriculture. The United States banned the use of DDT in 1972, but some countries still use the chemical.
DDT was one of the first chemicals in widespread use as a pesticide. Following World War II, it was promoted as a wonder-chemical, the simple solution to pest problems large and small. Today, nearly 40 years after DDT was banned in the U.S., we continue to live with its long-lasting effects: